Medical Definition of Red blood cells. Red blood cells: The blood cells that carry oxygen. Red cells contain hemoglobin and it is the hemoglobin which permits them to transport oxygen (and carbon dioxide). Hemoglobin, aside from being a transport molecule, is a pigment. It gives the cells their red color (and their name).
Alexander Milne Calder (August 23, 1846 â June 4, 1923) was a Scottish American sculptor best known for the architectural sculpture of Philadelphia City Hall. Both his son, Alexander Stirling Calder, and grandson, Alexander Sandy Calder, became significant sculptors in the 20th century.
Alexander Hamilton's birth date is disputed, but it is often listed as January 11, 1755. He was born on the island of Nevis, in the British West Indies, the illegitimate son (his parents were not married to each other) of James Hamilton, a Scotsman, and Rachel Fawcett Lavien, the daughter of a French physician.